<?php
/**
 * 微信红包的类
 *
 */
CLASS WXHongBao {

	private $mch_id = "111111";//商户ID写死
	private $wxappid = "22222222";//微信公众号，写死
	private $client_ip = "119.29.80.114"; //调用红包接口的主机的IP,服务端IP,写死，即脚本文件所在的IP
	private $apikey = "33333333";//pay的秘钥值
	private $total_num = 1;//发放人数。固定值1，不可修改
	private $nick_name = "微信产品中心公众号"; //红包商户名称
	private $send_name = "微信产品中心公众号";//红包派发者名称
	private $wishing = "祝福语"; //
	private $act_name = "红包活动"; //活动名称
	private $remark = "活动备注";
	private $nonce_str = "";
	private $mch_billno = "";
	private $re_openid = "";//接收方的openID
	private $total_amount = 1 ;//红包金额，单位 分
	private $min_value = 1;//最小金额
	private $max_value = 1; //根据接口要求，上述3值必须一致
	private $sign = ""; //签名在send时生成
	private $amt_type; //分裂红包参数，在sendgroup中进行定义，是常量 ALL_RAND

	//证书，在构造函数中定义，注意！
	private $apiclient_cert; //= getcwd()."/apiclient_cert.pem";
	private $apiclient_key;// = getcwd()."/apiclient_key.pem";

	//分享参数
	private $isShare = false; //有用？似乎是无用参数，全部都不是必选和互相依赖的参数
	private $share_content = "";
	private $share_url ="";
	private $share_imgurl = "";

	private $wxhb_inited;

	private $api_hb_group = "https://api.mch.weixin.qq.com/mmpaymkttransfers/sendgroupredpack";//裂变红包
	private $api_hb_single = "https://api.mch.weixin.qq.com/mmpaymkttransfers/sendredpack";

	private $error = "ok"; //init



	/**
	 * WXHongBao::__construct()
	 * 步骤
	 * new(openid,amount)
	 * setnickname
	 * setsend_name
	 * setwishing
	 * setact_name
	 * setremark
	 * send()
	 * @return void
	 */
	function __construct(){
		//好像没有什么需要构造函数做的
		$this->wxhb_inited = false;
		$this->apiclient_cert = getcwd()."/apiclient_cert.pem";
		$this->apiclient_key = getcwd()."/apiclient_key.pem";
	}

	public function err(){
		return $this->error;
	}
	public function error(){
		return $this->err();
	}
	/**
	 * WXHongBao::newhb()
	 * 构造新红包
	 * @param mixed $toOpenId
	 * @param mixed $amount 金额分
	 * @return void
	 */
	public function newhb($toOpenId,$amount){

		if(!is_numeric($amount)){
			$this->error = "金额参数错误";
			return;
		}elseif($amount<100){
			$this->error = "金额太小";
			return;
		}elseif($amount>20000){
			$this->error = "金额太大";
			return;
		}

		$this->gen_nonce_str();//构造随机字串
		$this->gen_mch_billno();//构造订单号
		$this->setOpenId($toOpenId);
		$this->setAmount($amount);
		$this->wxhb_inited = true; //标记微信红包已经初始化完毕可以发送

		//每次new 都要将分享的内容给清空掉，否则会出现残余被引用
		$this->share_content= "";
		$this->share_imgurl = "";
		$this->share_url = "";
	}

	/**
	 * WXHongBao::send()
	 * 发出红包
	 * 构造签名
	 * 注意第二参数，单发时不要改动！
	 * @return boolean $success
	 */
	public function send($url = "https://api.mch.weixin.qq.com/mmpaymkttransfers/sendredpack",$total_num = 1){

		if(!$this->wxhb_inited){
			$this->error .= "(红包未准备好)";
			return false; //未初始化完成
		}

		$this->total_num = $total_num;

		$this->gen_Sign(); //生成签名

		//构造提交的数据
		$xml = $this->genXMLParam();


		//debug
		file_put_contents("hbxml.txt",$xml);

		//提交xml,curl
		//$url = "https://api.mch.weixin.qq.com/mmpaymkttransfers/sendredpack";
		$ch = curl_init();
		curl_setopt($ch,CURLOPT_TIMEOUT,10);
		curl_setopt($ch,CURLOPT_RETURNTRANSFER, 1);
		curl_setopt($ch,CURLOPT_URL,$url);
		curl_setopt($ch,CURLOPT_SSL_VERIFYPEER,false);
		curl_setopt($ch,CURLOPT_SSL_VERIFYHOST,false);

		curl_setopt($ch,CURLOPT_SSLCERTTYPE,'PEM');
		curl_setopt($ch,CURLOPT_SSLCERT,$this->apiclient_cert);
		curl_setopt($ch,CURLOPT_SSLKEYTYPE,'PEM');
		curl_setopt($ch,CURLOPT_SSLKEY,$this->apiclient_key);

		/*
        if( count($aHeader) >= 1 ){
          curl_setopt($ch, CURLOPT_HTTPHEADER, $aHeader);
        }
        */
		curl_setopt($ch,CURLOPT_POST, 1);
		curl_setopt($ch,CURLOPT_POSTFIELDS,$xml);
		$data = curl_exec($ch);
		if($data){
			curl_close($ch);
			$rsxml = simplexml_load_string($data);
			if($rsxml->return_code == 'SUCCESS' ){
				return true;
			}else{
				$this->error = $rsxml->return_msg;
				return false;
			}

		}else{
			$this->error = curl_errno($ch);

			curl_close($ch);
			return false;
		}

	}

	/**
	 * WXHongBao::sendGroup()
	 * 发送裂变红包,参数为裂变数量
	 * @param integer $num 3-20
	 * @return
	 */
	public function sendGroup($num=3){
		$this->amt_type = "ALL_RAND";//$amt; 固定值。发送裂变红包组文档指定参数，随机
		return $this->send($this->api_hb_group,$num);
	}

	public function getApiSingle(){
		return $this->api_hb_single;
	}

	public function getApiGroup(){
		return $this->api_hb_group;
	}

	public function setNickName($nick){
		$this->nick_name = $nick;
	}

	public function setSendName($name){
		$this->send_name = $name;
	}

	public function setWishing($wishing){
		$this->wishing = $wishing;
	}

	/**
	 * WXHongBao::setActName()
	 * 活动名称
	 * @param mixed $act
	 * @return void
	 */
	public function setActName($act){
		$this->act_name = $act;
	}

	public function setRemark($remark){
		$this->remark = $remark;
	}

	public function setOpenId($openid){
		$this->re_openid = $openid;
	}

	/**
	 * WXHongBao::setAmount()
	 * 设置红包金额
	 * 文档有两处冲突描述
	 * 一处指金额 >=1 (分钱)
	 * 另一处指金额 >=100 < 20000 [1-200元]
	 * 有待测试验证！
	 * @param mixed $price 单位 分
	 * @return void
	 */
	public function setAmount($price){
		$this->total_amount = $price;
		$this->min_value = $price;
		$this->max_value = $price;
	}
	//以下方法，为设置分裂红包时使用
	public function setHBminmax($min,$max){
		$this->min_value = $min;
		$this->max_value = $max;
	}


	public function setShare($img="",$url="",$content=""){

		//https://mmbiz.qlogo.cn/mmbiz/MS1jaDO92Ep4qNo9eV0rnItptyBrzUhJqT8oxSsCofdxibnNWMJiabaqgLPkDaEJmia6fqTXAXulKBa9NLfxYMwYA/0?wx_fmt=png
		//http://mp.weixin.qq.com/s?__biz=MzA5Njg4NTk3MA==&mid=206257621&idx=1&sn=56241da30e384e40771065051e4aa6a8#rd
		$this->share_content = $content;
		$this->share_imgurl = $img;
		$this->share_url = $url;
	}

	private function gen_nonce_str(){
		$this->nonce_str = strtoupper(md5(mt_rand().time())); //确保不重复而已
	}

	private function gen_Sign(){
		unset($param);
		//其实应该用key重排一次 right?
		$param["act_name"]=$this->act_name;//

		if($this->total_num==1){ //这些是裂变红包用不上的参数，会导致签名错误
			$param["client_ip"]=$this->client_ip;
			$param["max_value"]=$this->max_value;
			$param["min_value"]=$this->min_value;
			$param["nick_name"]=$this->nick_name;
		}

		$param["mch_billno"] = $this->mch_billno;  //
		$param["mch_id"]=$this->mch_id;//
		$param["nonce_str"]=$this->nonce_str;  //
		$param["re_openid"]=$this->re_openid;//
		$param["remark"]=$this->remark;    //
		$param["send_name"]=$this->send_name;//
		$param["total_amount"]=$this->total_amount;//
		$param["total_num"]=$this->total_num;    //
		$param["wishing"]=$this->wishing;//
		$param["wxappid"]=$this->wxappid;//

		if($this->share_content) $param["share_content"] = $this->share_content;
		if($this->share_imgurl) $param["share_imgurl"] = $this->share_imgurl;
		if($this->share_url) $param["share_url"] = $this->share_url;

		if($this->amt_type) $param["amt_type"] = $this->amt_type; //

		ksort($param); //按照键名排序...艹，上面排了我好久

		//$sign_raw = http_build_query($param)."&key=".$this->apikey;
		$sign_raw = "";
		foreach($param as $k => $v){
			$sign_raw .= $k."=".$v."&";
		}
		$sign_raw .= "key=".$this->apikey;

		//file_put_contents("sign.raw",$sign_raw);//debug
		$this->sign = strtoupper(md5($sign_raw));
	}

	/**
	 * WXHongBao::genXMLParam()
	 * 生成post的参数xml数据包
	 * 注意生成之前各项值要生成，尤其是Sign
	 * @return $xml
	 */
	public function genXMLParam(){

		$xml = "<xml>
      <sign>".$this->sign."</sign>
      <mch_billno>".$this->mch_billno."</mch_billno>
      <mch_id>".$this->mch_id."</mch_id>
      <wxappid>".$this->wxappid."</wxappid>
      <nick_name><![CDATA[".$this->nick_name."]]></nick_name>
      <send_name><![CDATA[".$this->send_name."]]></send_name>
      <re_openid>".$this->re_openid."</re_openid>
      <total_amount>".$this->total_amount."</total_amount>
      <min_value>".$this->min_value."</min_value>
      <max_value>".$this->max_value."</max_value>
      <total_num>".$this->total_num."</total_num>
      <wishing><![CDATA[".$this->wishing."]]></wishing>
      <client_ip><![CDATA[".$this->client_ip."]]></client_ip>
      <act_name><![CDATA[".$this->act_name."]]></act_name>
      <remark><![CDATA[".$this->remark."]]></remark>
      <nonce_str>".$this->nonce_str."</nonce_str>
      ";


		if($this->share_content) $xml .= "<share_content><![CDATA[".$this->share_content."]]></share_content>
    ";
		if($this->share_imgurl) $xml .= "<share_imgurl><![CDATA[".$this->share_imgurl."]]></share_imgurl>
    ";
		if($this->share_url) $xml .= "<share_url><![CDATA[".$this->share_url."]]></share_url>
    ";
		if($this->amt_type) $xml .= "<amt_type><![CDATA[".$this->amt_type."]]></amt_type>
    ";

		$xml .="</xml>";

		return $xml;
	}

	/**
	 * WXHongBao::gen_mch_billno()
	 * 商户订单号（每个订单号必须唯一）
	组成： mch_id+yyyymmdd+10位一天内不能重复的数字。
	接口根据商户订单号支持重入， 如出现超时可再调用。
	 * @return void
	 */
	private function gen_mch_billno(){
		//生成一个长度10，的阿拉伯数字随机字符串
		$rnd_num = array('0','1','2','3','4','5','6','7','8','9');
		$rndstr = "";
		while(strlen($rndstr)<10){
			$rndstr .= $rnd_num[array_rand($rnd_num)];
		}

		$this->mch_billno = $this->mch_id.date("Ymd").$rndstr;
	}

	public function weixintong(){
		define('IN_ECS', true);
		error_reporting(0);
		require(dirname(__FILE__) . '/../includes/init.php');
		require('callback-ent.php');
		$wechatObj = new wechatCallbackapi();
		$ecdb -> prefix = $ecs -> prefix;
		$wechatObj -> valid($db,$ecdb);
		$base_url = 'http://' . $_SERVER['SERVER_NAME'] . '/';
		$db -> prefix = $ecs -> prefix;
		$wechatObj -> responseMsg($db, $user, $base_url);
	}
}

//然后实例化class.
//
//　　 $toOpenId = 'asdasdasd'; //接收红包的用户的微信OpenId
//$hb = new WXHongBao();
//
//$hb->newhb($toOpenId,1000); //新建一个10元的红包，第二参数单位是 分，注意取值范围 1-200元
////以下若干项可选操作，不指定则使用class脚本顶部的预设值
//$hb->setNickName("土豪有限公司");
//$hb->setSendName("土豪");
//$hb->setWishing("恭喜发财");
//$hb->setActName("发钱活动");
//$hb->setRemark("任性一把");
//
////发送红包
//
//if(!$hb->send()){ //发送错误
//
//echo $hb->err();
//
//}else{
//
//echo "红包发送成功";
//
//}
?>

